Severe Weather

Heat Indexes of 110°F, Along With Severe Storms Possible Monday Heat alerts now cover much of Central and Eastern PA, as heat indexes will reach 110°F in areas. If outside be sure to drink lots of water each hour and DO NOT leave a young child or pet in the car. An updated map of heat related alerts is below. Scattered severe storms will also be around the state today, see details for each labeled region below. AREA  A – This region can expect scattered strong to severe thunderstorms packing winds of near 60 MPH and hail in the strongest of cells. Storms will begin to form in Western PA…MORE...
Marginal Severe Storm Risk For Friday The only possible temporary relief from the heat, will come in the form of isolated storms. Unfortunately, the key word is isolated. Tomorrow, a system will be passing well to our North, putting the state of PA on the south side of the system, giving us the potential for some storms. The worst of the Severe Weather will likely occur in Upstate New York and Southern New England this time around. However, there will be isolated Strong to Severe storms Tomorrow. Storms will be around the Northwestern third of state in the mid-morning hours between 5 am and 9 am,…MORE...
Severe Thunderstorms To Produce Widespread Damaging Wind Threat Monday Monday will feature the most widespread Severe Thunderstorm threat of the season, in regards to how much of the State is in the SLIGHT RISK category as oppose to MARGINAL. Severe Thunderstorms will fire up along a front that will be passing through the State Tomorrow. The line of storms may not be a solid line, more like a broken line of storms, however, anywhere along the front, there is the chance for a Severe Storm to develop. Hires Nam future radar shows this well: Valid 4 PM Monday Notice how it is not a solid line, but it extends…MORE...
Severe Thunderstorms To Produce Damaging Winds Thursday Much like yesterday, scattered thunderstorms will be in the forecast state-wide, however this time around, there is more of an upside potential in terms of meeting Severe criteria. Timing: Storms will fire up in the mid-morning hours across Western PA and continue to develop and push Eastward throughout the Afternoon hours. The Storm Prediction Center has stated that the main impact with Today’s storms will be damaging winds in excess of 60mph. Area A – The Storm Prediction Center has placed this area under a SLIGHT RISK for Severe Weather. Based on Today’s setup and the ingredients that will be coming…MORE...
Rainfall Totals Update For Independence Day We have good news and some bad news. The good news is guidance has backed off a bit on rainfall totals and shifted everything a bit south over the last 24 hours. The bad news is, the chance for rain remains throughout the whole state, but not as heavy as originally thought especially for the Northern 2/3rd’s of the state. The rainfall will arrive throughout the morning hours in Southern PA and into the early afternoon hours in Northern PA. It should remain light to moderate at times, and possibly taper or stop completely by the nighttime, before another, heavier…MORE...
Heavy Rain to Disrupt Holiday Fireworks Monday AN UPDATE HAS BEEN POSTED>>>>>https://paweatheraction.com/rainfall-totals-update-for-independence-day Unfortunately, over the last 24 hours guidance has trended North with a low pressure system that will be impacting us Monday into Tuesday. Now, this puts most of the state under the gun for some heavy rainfall. This time yesterday, it looked as if only extreme Southern PA would have to deal with any type of rainfall Monday, but that has since changed. Timing: The rain will advance from Southwest to Northeast during the day Monday. It will begin in Southwest PA between 8 AM and Noon, and then arrive during the afternoon hours for…MORE...
SEVERE WEATHER THREAT UPGRADED TODAY: DAMAGING WINDS, LARGE HAIL, ISOLATED TORNADOES POSSIBLE As the latest short range guidance flows in, the STORM PREDICTION CENTER has UPGRADED much of the state in their respected categorical risks. Here’s their latest: In their discussion they state that damaging winds and hail will be the primary threat, with the potential of rotating storms. These storms that do rotate and become what we call a “super-cell” have the potential of producing a tornado or two. Area A – This region is now under a SLIGHT RISK for Severe Weather. This area has the potential of having a storm produce damaging winds, large hail, and an isolated tornado. Area…MORE...
Supercells to Bring Hail, Damaging Winds & Possibly Brief Tornado Friday Although we don’t expect this to be a significant event, the Storm Prediction Center has upgraded NE-PA to a slight risk. Their discussion mentions this, “SLIGHT RISK FOR HAIL…WIND…AND PERHAPS A BRIEF/WEAK TORNADO.” The slight risk covers much of Eastern Upstate New York as well, and if there were to be a brief tornado it would likely be in New York, however with that said the Northern Poconos can not be ruled out of this risk. The rest of Eastern Pennsylvania is at a marginal risk for seeing these severe thunderstorms, including locations such as Philadelphia, Allentown, Reading, Lancaster, Harrisburg,…MORE...
SHOWERS AND STORMS TO IMPACT PARTS OF THE 4TH OF JULY WEEKEND It is hard to believe we are already at the end of June and forecasting the 4th of July Weekend. Time is truly flying by this year! Like the title states, there is the potential of some showers and storms for the 4th of July Weekend. They will come in 2 waves. Wave #1: Much like Tuesday’s Weather where Eastern PA took the brunt of the storms, the potential exists for a similar scenario late Friday Afternoon and into the nighttime hours. However, the severity of these storms will not be as powerful as Tuesday’s, nor will they be as…MORE...
SEVERE WEATHER THREAT UPGRADED FOR PARTS OF PA TOMORROW The latest from the Storm Prediction Center has now placed areas in Eastern PA under a SLIGHT RISK for severe weather. This is an upgrade from their last update from earlier this morning. Timing: There will be TWO lines that will move through the area both impacting Eastern PA the greatest. The first line will deliver with it mainly heavy rain and few rumbles of thunder between 4 am and Noon. After that line passes through, a second line will develop, and depending on how much sunshine Eastern PA sees between the two different lines of storms, will determine if…MORE...
LIMITED SEVERE THREAT TODAY, DAMAGING WINDS + HAIL POSSIBLE TUESDAY A line of showers and perhaps embedded thunderstorms will develop today and swing through the state of PA from West to East giving an area-wide threat of showers and storms. All activity should not contain severe weather, but heavy downpours and a rumble of thunder is possible. Latest short range guidance shows this line well. Valid for 1 PM this afternoon:  As the line sinks Southeast, the line begins to break up. So Western and Central parts of the state will definitely have the better chance for shower and thunderstorm activity. Tomorrow stands the better chance for the area to…MORE...
Severe Thunderstorm Threat Update Based off current radar observations and latest guidance, it looks like about half of PA will be able to escape the brunt of the Severe Thunderstorms and heavy rainfall during overnight hours and into Tomorrow Morning. Latest short range model, HRRR, shows this well valid for 7 am: It looks like if you live north of I-80 in PA your Thursday Morning will remain completely dry. Those areas south of the PA/MD border are in store for what looks to be a good amount of rainfall, perhaps over 2 and even 3 inches in spots. Just 36 hours ago, most…MORE...
Severe Thunderstorms to Bring Flooding Rain and Damaging Winds to Parts of Pennsylvania Tonight We continue to track a Mesoscale Convective System that is currently tracking over the Great Lakes region, bringing with it, damaging winds, large hail, and even tornadoes. This will track towards Pennsylvania Tonight into Thursday Early Morning. While it does so, it is expected to weaken up a bit. The latest words out of the Storm Prediction Center states, areas to the west of PA..mainly Illinois, Indiana, Ohio, and Southwest Michigan have the chance at seeing Tornadoes. Everyone else, including PA, has the potential of seeing strong winds in excess of 70mph (locally), large hail, and very heavy rainfall. The…MORE...
Flooding Rains with the Potential of Severe Weather Thursday We are tracking a Mesoscale Convective System, that will develop across the Great Lakes region Tomorrow, slides its way Eastward into the state of Pennsylvania by Thursday Morning. The MCS will reach Western PA by Thursday Morning…likely right around the morning rush hour, before pushing East from there and reaching Eastern PA by the Afternoon hours. Unlike typical thunderstorms, with a Mesoscale Convective System, on radar you will see a large area of heavy rain and thunderstorms. These will not be hit or miss type storms. More than likely your backyard will see some rainfall Thursday. Just how much rainfall…MORE...
Strong to Severe Storms to Pass Through the State Tonight into Tomorrow Morning After a mostly calm day, we turn our attention to a potent cold front that will be passing through the region later this evening and into Tomorrow morning. A line of strong to severe storms will develop along this front, first hitting the Northwest part of the state and will drift Southeastward from there. As the line does drift Southeastward, it will lose its intensity to some degree and is the reason why the Storm Prediction Center did not include the Central and Eastern portions of the State in the Slight Risk. The Storm Prediction Center states that the primary…MORE...

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